STOPCOR LIMITED
STOPCOR LIMITED is a London-headquartered, Athens-manufactured specialist in self-contained cathodic protection devices that use a sacrificial magnesium anode to prevent corrosion and limescale in domestic, commercial, marine, and solar plumbing systems, sold globally through plumbing distributors and Professional Plumbers Associations.
- Company typePrivate
- Founded1968
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What STOPCOR LIMITED does
STOPCOR LIMITED is a privately held UK-headquartered designer, manufacturer, and distributor of self-contained cathodic protection devices, founded in 1968 by Nikitas Kounadinas and headquartered in London with industrial manufacturing in Athens, Greece. The company began in maritime and industrial impressed-current cathodic protection before launching the STOPCOR branded product line in 2000 for domestic and commercial plumbing and heating systems. Its core technology imposes protective direct current up to -1.5V via a sacrificial magnesium anode without any external power source, batteries, or active monitoring, and a secondary water-conditioning effect changes limescale crystal morphology so deposits are washed away rather than accumulating; the method is protected by granted patents through WIPO (WO 2018/011608), the EU (EP3485064), the United States (US11,091,841 B2), Canada, and the UAE.
The product portfolio spans the Domestic Line (Heater Pro 1 and 2), Commercial Line (C5, C7, C9), Marine Line (Boat A1 through A9), STOPCOR Solar for PV and solar thermal installations, STOPCOR Liquid 2-in-1 for sealed heating systems, MGPS/ICAF marine growth prevention systems, ICCP impressed-current systems, and standalone sacrificial anodes. All consumer and commercial SKUs carry a 3-year operational lifespan and are sold as one-time hardware purchases with no subscription layer. STOPCOR distributes through at least 10 named UK plumbing and heating merchants (Tucker French, HPS, BuilderDepot, Kingsbury, Aqualite, LPH, STC, Lords, MPMorgan, A10) and via Professional Plumbers Associations worldwide, supported by regular trade-show presence including the PHEX exhibition series, the Installer Show Coventry, and the AMPP Annual Conference + Expo.
The business operates with approximately 7 employees, no disclosed institutional funding, and no disclosed revenue. Pricing is quote-based and not publicly listed; the company markets its offering against three primary pain points — boiler and pipe corrosion, limescale accumulation, and resulting repair costs — for domestic homeowners, commercial facilities, marine operators, and solar installers, primarily in the UK with patent-supported reach into Europe, North America, and the Middle East.
STOPCOR LIMITED firmographics
Firmographics- Name
- STOPCOR LIMITED
- Legal name
- STOPCOR Ltd
- Website
- https://stopcor.co.uk
- Company type
- Private
- Founded year
- 1968
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- STOPCOR LIMITED is a London-headquartered, Athens-manufactured specialist in self-contained cathodic protection devices that use a sacrificial magnesium anode to prevent corrosion and limescale in domestic, commercial, marine, and solar plumbing systems, sold globally through plumbing distributors and Professional Plumbers Associations.
- Ownership category
- akta.pro rank
STOPCOR LIMITED industry classification
Industry- Product category
- Cathodic Protection Equipment
- NAICS
- Coating, Engraving, Heat Treating, and Allied Activities (33281), Electroplating, Plating, Polishing, Anodizing, and Coloring (332813)
- SIC
- Measuring & Controlling Devices, Nec (3829), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- Corrosion Control & Cathodic Protection Services (IMAIAKAI)
- akta.pro secondary industries
- Corrosion Control & Asset Integrity Services (Cathodic Protection/Coatings QA) (IMAIACAK), Cathodic Protection & Corrosion Control Systems (EUAJABAI), Corrosion Control & Cathodic Protection Maintenance (CP Systems, Coatings) (EUAJAMAF), Corrosion Control & Cathodic Protection (Monitoring/Testing/Remediation) (EUAJADAE)
Keywords
Where STOPCOR LIMITED is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
STOPCOR LIMITED business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D
Revenue model
- Hardware Product Sales: Sale of self-contained STOPCOR devices including Domestic Line (Heater Pro 1, Heater Pro 2), Commercial Line (C5, C7, C9), Boat, Solar, Liquid 2-in-1, MGPS/ICAF systems, and Sacrificial Anodes. Products have a 3-year lifespan and are sold as one-time purchase with no ongoing subscription required.
Go-to-market motion2 records
Distribution channels11 records
Marketing channels6 records
STOPCOR LIMITED product offering
Product offeringCore offering
STOPCOR LIMITED manufactures and sells self-contained cathodic protection devices that prevent electrochemical (galvanic) corrosion and reduce limescale in plumbing, heating, marine, and solar systems. The proprietary STOPCOR method generates impressed current up to -1.5V through a sacrificial magnesium anode without any external power source or batteries, providing 3 years of consistent protection per device. Product lines include the Domestic Line (Heater PRO 1 & 2), Commercial Line (C5, C7, C9), Marine (Boat A1–A9), Solar, MGPS/ICAF, ICCP systems, and supporting items like Liquid 2 in 1 and Sacrificial Anodes.
Product overview
STOPCOR LIMITED offers a portfolio of self-contained cathodic protection devices that prevent electrochemical corrosion and reduce limescale in plumbing, heating, marine, and solar applications. The product line consists of the Domestic Line (Heater PRO 1 & 2 for households), Commercial Line (C5, C7, C9 for commercial facilities), Marine Line (Boat A1-A9 for vessels), Solar protection, MGPS/ICAF systems for ships, ICCP systems, and supporting products like STOPCOR Liquid 2 in 1 and Sacrificial Anodes. All devices use a proprietary method of generating impressed current through sacrificial magnesium anodes, imposing protective voltage up to -1.5V without external power sources. The technology is protected by international patents (WO 2018/011608, EP3485064, US11,091,841 B2).
Differentiator
Problem solved
Functional benefit
Brands
- STOPCOR Heater PRO 1 & 2: Domestic line cathodic protection devices for heating boilers and gas equipment protection against corrosion and limescale.
- STOPCOR Commercial Line (C5, C7, C9)
- STOPCOR Boat
- STOPCOR Solar
- STOPCOR Liquid 2 in 1
- MGPS/ICAF
- Impressed Current ICCP System
- Sacrificial Anodes
Products and services
- STOPCOR Heater PRO 1 Self-contained cathodic protection device for domestic heating boilers (12-18KW, 1-bedroom homes) that prevents electrochemical corrosion and reduces limescale without external power.
- STOPCOR Heater PRO 2 Self-contained cathodic protection device for domestic heating boilers (12-18KW, 1-bedroom homes) that prevents electrochemical corrosion and reduces limescale without external power.
- STOPCOR C5
Companies that use STOPCOR LIMITED
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
STOPCOR LIMITED technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
STOPCOR LIMITED partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and minor.
- Tucker FrenchcoreUK distributor for plumbing and heating equipment. Products made available through Tucker French retail stores. Partnership announced at PHEX Chelsea 2018 exhibition.
- HPS (Hampshire Plumber Supplies)coreUK distributor with dedicated HPS Lounge at exhibitions. Hosted successful events for STOPCOR products with positive customer feedback.
- BuilderDepotminorUK building materials distributor offering STOPCOR products
- Kingsbury Heating SuppliesminorUK heating supplies distributor for STOPCOR product line
- AqualiteminorUK plumbing and heating distributor carrying STOPCOR products
- LPH (London Plumbing and Heating)minorUK distributor for plumbing and heating equipment
- STCminorUK distributor
- LordsminorUK distributor
- MPMorganminorUK distributor
- A10minorUK distributor
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
STOPCOR LIMITED competitors and assessment
Company assessmentDirect peers
- Scalewatcher: Global supplier of electronic descalers and hard-water treatment devices for residential, commercial, and industrial use. Closest direct competitor to STOPCOR in the externally-fitted electronic water treatment category.
- Cathelco: UK-based manufacturer of impressed current cathodic protection and marine growth prevention systems (MGPS/ICAF) for ships and offshore structures. Direct overlap with STOPCOR's MGPS/ICAF and ICCP product lines and target customer base (shipowners, offshore operators).
- Imenco: Norwegian supplier of cathodic protection (sacrificial and ICCP) and marine growth prevention systems for offshore, shipping, and aquaculture. Highly comparable to STOPCOR's marine CP and MGPS/ICAF offerings.
- Farwest Corrosion Control: US distributor and supplier of cathodic protection materials, anodes, and ICCP equipment for pipeline and water infrastructure. Direct overlap on sacrificial magnesium/aluminum anodes and ICCP product categories.
- Magnation Water Technologies: Sells magnetic/electronic water conditioning devices to reduce limescale and improve water quality in agricultural, commercial, and residential settings. Competes directly with STOPCOR on the 'no-chemical, no-salt limescale solution' value proposition.
- HydroFLOW: Markets electronic/hydraulic water conditioners that use signal-based technology to reduce limescale and biofilm. Comparable to STOPCOR's externally-fitted, no-plumbing-modification positioning and same target buyer (facilities managers, homeowners).
- Cactus Utilities: Specialist distributor of cathodic protection and corrosion control products (anodes, ICCP equipment) for utilities and water companies. Comparable channel model and product range to STOPCOR's industrial CP offering.
- Cathodic Protection Group (CPG): UK specialist in cathodic protection design, supply, and installation for pipelines, tanks, and industrial assets. Comparable to STOPCOR's industrial/ICCP heritage and engineering-led go-to-market.
Broad incumbents
- Evoqua Water Technologies: Large US-listed water treatment company offering chemical, filtration, and electrochemical solutions across municipal and industrial markets. A broad incumbent whose electrochemical/corrosion portfolio partially overlaps STOPCOR's industrial water-side use cases.
- Culligan International: Global leader in residential and commercial water treatment (softeners, filtration, drinking water systems). Competes with STOPCOR for the same homeowner/light-commercial buyer in hard-water regions, but with a much broader portfolio and recurring-service model.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
STOPCOR LIMITED social profiles
Digital presenceSTOPCOR LIMITED financial estimates
Financial estimateRevenue estimate
Valuation estimate
STOPCOR LIMITED leadership team
Management profileNumber of profiles
Profiles1 record
STOPCOR LIMITED funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
STOPCOR LIMITED M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about STOPCOR LIMITED
What does STOPCOR LIMITED do?
STOPCOR LIMITED manufactures and sells self-contained cathodic protection devices that prevent electrochemical (galvanic) corrosion and reduce limescale in plumbing, heating, marine, and solar systems. The proprietary STOPCOR method generates impressed current up to -1.5V through a sacrificial magnesium anode without any external power source or batteries, providing 3 years of consistent protection per device. Product lines include the Domestic Line (Heater PRO 1 & 2), Commercial Line (C5, C7, C9), Marine (Boat A1–A9), Solar, MGPS/ICAF, ICCP systems, and supporting items like Liquid 2 in 1 and Sacrificial Anodes.
Is STOPCOR LIMITED a public or private company?
STOPCOR LIMITED is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was STOPCOR LIMITED founded?
STOPCOR LIMITED was founded in 1968. It employs 1 to 10 people.
Where is STOPCOR LIMITED based?
STOPCOR LIMITED is headquartered in London, United Kingdom, in the Europe region.
How does STOPCOR LIMITED make money?
One revenue line is on record: hardware Product Sales.
Who are STOPCOR LIMITED's main competitors?
Direct peers on record are Scalewatcher, Cathelco, Imenco, Farwest Corrosion Control, Magnation Water Technologies, HydroFLOW, Cactus Utilities and Cathodic Protection Group (CPG). Broad incumbents are Evoqua Water Technologies and Culligan International.
Does STOPCOR LIMITED have an API?
No public API is recorded for STOPCOR LIMITED.
What industry is STOPCOR LIMITED in?
STOPCOR LIMITED's product category is Cathodic Protection Equipment. Its primary akta.pro industry code is IMAIAKAI, Corrosion Control & Cathodic Protection Services, with a secondary code of IMAIACAK, Corrosion Control & Asset Integrity Services (Cathodic Protection/Coatings QA). Its NAICS code is 33281 and its SIC code is 3829.